ROBERTSON 3P20001 ISL432T8120 /B Fluorescent eBallast for 4 F32T8 Lamps, IS, 120Vac, NPF. (Item 3P20001 has been replaced by Item 3P20135, Model IEA432T8120N /B). Equivalent to: Philips-Advance REL-4P32-SC,REB4P32N,Osram-Sylvania QTP4x32T8/UNV ISN-SC Equivalent to:Universal B432I120RH-A, B432I120RESA,General Electric GE-432-120-N,Sola E-758-F-432-SC Equivalent to:Keystone KTEB-432LBF-1-TP-PIC, KTEB-432RIS-1-TP-SL, KTEB-432RIS-1-TP,Howard E4/32IS/120SC Save 21% and order the Quik-Pak of 10 individually packaged ROBERTSON units: 2P20001 ISL432T8120 /B Five Year Factory Warranty-ONLY if the Amazon Seller is ROBERTSON WORLDWIDE.